Breitling
Navitimer 806 Twin Jet MK-7 Boxed 10 - Black Reverse Panda Dial, Venus 178

“In 1968, air travel still retained the prestige of a ceremony, while the chronograph on the wrist remained a decision-making instrument.”

Breitling Vintage 40.2 mm stainless-steel aviation chronograph, reference 806, case number 1,23X,XXX, black reverse-panda dial with ivory registers, circular slide rule, bidirectional bezel, Plexiglas crystal and hand-wound Venus 178 column-wheel movement with 17 jewels, 18,000 vibrations per hour and approximately 45 hours of power reserve after a full winding.

In 1968, commercial aviation was entering the Jet Age in earnest. Inside the terminals of Orly-Sud, mechanical departure boards announced flights to London, Rome, New York and Beirut, while passengers discovered a new way of crossing the world. Caravelles, Boeing 707s and Douglas DC-8s were reducing travel times, yet navigation still relied on paper charts, electromechanical instruments and calculations performed by the crew. The Breitling Navitimer belongs directly to this world. Its highly detailed dial, almost comparable to a miniature instrument panel, was not conceived merely as a styling exercise: it reflects a period when a wristwatch could still support the preparation and timing of a flight.

The Breitling Navitimer was introduced in the early 1950s around an especially ambitious concept: combining a chronograph and a circular slide rule within a portable instrument. By rotating the bezel, the wearer can align the different scales to perform multiplication, division, distance or speed conversions, fuel-consumption calculations and journey-time estimates. These functions are now historical rather than essential, but they remain usable and explain the Navitimer’s unique character. The dial does not seek immediate simplicity. It offers several levels of information, with figures, scales and markers whose logic gradually reveals itself.

This example is a Breitling Navitimer reference 806, and its 1,23X,XXX case number places production in 1968. Its configuration corresponds to the generation commonly described by collectors as the Mk7 Twin-Jet “Boxed 10.” This identification is based on a coherent combination of details: the applied 12 numeral, Breitling’s Twin-Jet emblem depicting two stylised aircraft, the BREITLING GENÈVE signature, the NAVITIMER name above the six o’clock register, the three smaller subsidiary dials and the red boxed “10” markings visible on the slide-rule scale. Considered together, these elements distinguish the watch from the numerous other developments of reference 806.

The Twin-Jet emblem is especially representative of Breitling’s identity during the 1960s. It accompanied the transition from propeller-driven aircraft to commercial jet travel and connected the watch with the new international image of long-haul aviation. Unlike the earliest Navitimers bearing the AOPA emblem, this version displays a more assertive Breitling identity. It should not be confused with the so-called Big Eye variants, which feature noticeably larger chronograph registers, or with the 24-hour Cosmonaute. This watch retains the traditional Navitimer 806 architecture, with a conventional twelve-hour display and three well-balanced subsidiary dials.

Its black reverse-panda dial features light-coloured registers contrasting against a dark background. Running seconds are displayed at nine o’clock, the thirty-minute chronograph counter at three and the twelve-hour totaliser at six. This arrangement provides an intuitive reading of elapsed time while giving the dial its characteristic depth. The peripheral slide rule, technical inscriptions and red accents create an immediately recognisable aesthetic, positioned somewhere between a cockpit instrument and a prestige object. The Plexiglas crystal produces soft, slightly distorted reflections that form an important part of the authentic appearance of a chronograph from this period.

At approximately 40.2 mm, the stainless-steel case gave the Navitimer 806 an unusually generous presence in 1968. Its elongated lugs, finely serrated bezel and chronograph pushers still give it a remarkably contemporary silhouette. Despite the wealth of information displayed on the dial, the watch remains elegant because of the relative slimness of its case and the balance of its proportions. It can be worn with a jacket, professional clothing or a more relaxed wardrobe. The fitted black leather strap reinforces its classic character and can easily be changed to suit the wrist and intended use of its future owner.

Inside is the Venus 178, one of the most emblematic Swiss chronograph movements of the post-war period. This hand-wound integrated calibre uses a traditional column-wheel control system and horizontal clutch. Running at 18,000 vibrations per hour, fitted with 17 jewels and offering approximately 45 hours of power reserve after a full winding, it combines traditional construction with highly legible mechanical operation. Manual winding creates a direct relationship with the watch: a few turns of the crown each morning provide its energy, echoing the preparation of an instrument before departure. The upper pusher starts and stops the chronograph, while the lower pusher resets it once the chronograph has been stopped completely.

The dial, registers, slide rule and crystal display the marks of a watch that has travelled through almost six decades. The black surface has developed pronounced patina and an irregular texture, while the light registers have acquired a warm ivory tone. The Plexiglas and case also show visible signs of wear. This evolution is not concealed, as it forms an important part of the identity of this particular example. Detailed photographs provide a clear appreciation of its condition without inaccurately describing it as new, untouched or never restored. The watch nevertheless retains a powerful presence and particularly appealing visual coherence for the vintage-watch enthusiast.

This Navitimer differs from a modern chronograph through the combination of three qualities rarely found in a single watch. It is first a functional instrument, with its chronograph and circular slide rule. It is also a historical witness, directly connected with the development of commercial aviation and the technical design language of the 1960s. Finally, it is an identifiable collector’s object, belonging to a specific development of reference 806 and powered by the highly regarded Venus 178. Its practical appeal therefore extends beyond displaying the time: it can measure elapsed periods, allow the owner to explore the slide rule and preserve the distinctive ritual of manual winding.

In daily life, it will suit an enthusiast who wants to wear a vintage watch with a strong personality rather than absolute discretion. During a journey, its chronograph can time a connection, a journey, a meeting or any other period. The slide rule can still be used for simple calculations and conversions, although it will often be appreciated as evidence of a world before electronic calculators. For the collector, this watch represents one of the essential references in the history of aviation chronographs. For the aviation enthusiast, it provides a tangible link with the introduction of regular intercontinental jet services. It can also become a watch to pass on, its age, mechanical construction and visible marks telling a more personal story than a contemporary timepiece.

A vintage Navitimer nevertheless requires use appropriate to its age. It should be wound gently until the natural resistance of the mainspring is felt, without forcing the crown. The chronograph must be stopped before the reset pusher is operated. The bezel and slide rule should be handled without excessive pressure. Above all, this watch must not be considered water-resistant: contact with water, steam, significant humidity and sudden temperature changes should be avoided. It is intended to be worn and enjoyed, but with the care appropriate to a collectible mechanical instrument dating from 1968.

Purchasing this Breitling Navitimer 806 from Mostra provides essential security when considering a model whose numerous versions, service components and past restorations can make the vintage market difficult to navigate. Our work begins with a precise historical identification of the watch, its reference, period and configuration, ensuring that this Mk7 Twin-Jet “Boxed 10” is not confused with an AOPA, Big Eye or Cosmonaute version. The watch is then entrusted to our watchmaking workshop in Aix-en-Provence, where its movement, rate, amplitude, power reserve, chronograph operation, reset, crown, pushers, bezel and slide rule are inspected and adjusted before delivery, with respect for its historical components. Its cosmetic condition is presented transparently through detailed photographs and a description that distinguishes visible signs of age from the mechanical functions that have been checked. Backed by more than forty years of experience in collectible watches, Mostra also provides direct support after purchase, both in-store and remotely, together with a three-year warranty, excluding water resistance. The buyer is therefore acquiring more than a vintage Navitimer: the watch comes with documented identification, specialist mechanical inspection, a long-term point of contact and after-sales support capable of accompanying it well beyond delivery.